diff --git a/ROADMAP.md b/ROADMAP.md
index 08840b7..85ca8ef 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -406,7 +406,7 @@
 - [ ] "return-await"
 - [X] "semi"
 - [ ] "space-before-function-paren"
-- [ ] "strict-boolean-expressions"
+- [X] "strict-boolean-expressions"
 - [ ] "switch-exhaustiveness-check"
 - [ ] "triple-slash-reference"
 - [ ] "type-annotation-spacing"
diff --git a/src/rules/typescript/default.json b/src/rules/typescript/default.json
index d8596f5..40f5473 100644
--- a/src/rules/typescript/default.json
+++ b/src/rules/typescript/default.json
@@ -61,6 +61,14 @@
       "omitLastInOneLineBlock": false
     }
   ],
+  "@typescript-eslint/strict-boolean-expressions": [
+    "error",
+    {
+      "allowNullable": false,
+      "allowSafe": false,
+      "ignoreRhs": false
+    }
+  ],
   "indent": [
     "off"
   ],